A dipole with negative charge of -5.0 x 10 -6 C on the x-axis at x = -3.0 cm, and a positive charge of 5.0 x 10-6 C on the x-axis at x = + 3.0 cm. A negative point charge of q = -4.0 x 10-6 C is placed on the y-axis at y = -4.0 cm.
a) Draw the two forces acted on the negative point charge q = -4.0 x 10 -6 C (in arbitrary scale, but correct DIRECTION).
b) How big is the TOTAL eletrostatic force acted on the -4.0 x 10 -6 C charge? What is its direction? (i.e., the angle with respect to the x-direction).
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